This is a genuine bit of advice - If you are at all worried about the running costs of a supra and can't afford a second car, get a motorbike. Either do a direct access course to get straight onto a proper machine or just do a CBT and get a little moped for work purposes. They cost sod all to run, insure and tax.
I used to run a TT auto as my daily driver, when my wife got pregnant, I sold her (big mistake), I put on my sensible trousers and used the money from the supra to do my bike license and get an R6. I ran the R6 for a year to get to and from work and the money I saved was outrageous. It works out cheaper to run the bike and the supra, rather than just the supra on its own providing you use the bike to get to work, and just leave the supe for weekends and special outings.
The added bonus to all this is that bikes get you to work through traffic in no time at all, so you get more time at home in the mornings .
AND....they are awesome fun, providing you stay sensible.
EDIT - just to add, I'm now back in the supra gang having bought a manual BPU TT, I'm having a hard time leaving her at home though. I should have rode to work today on the bike, but the beast is parked in the underground car park at work as I type this.